I removed Photoshop CC from an old second hand MacBook Pro I brought on gumtree.com and installed it on my iMac. I don't have the name or contact details of the person I purchased the laptop from and therefore I don't have the product serial number. How can I get it? Kelly
CC applications do not have serial numbers. Just because the application was installed on the machine when you purchased it does not mean you purchased the application or the rights to use it. You will have to start your own subscription for the software.